Our mini schnauzer had to have the stuff from a green chewy treat surgically removed from his intestines because it wouldn't digest. Any amount of that fake nutrient laced Chinese crap would kill him, I'm sure.
Our vet recommended only lamb and rice based food (Purina One isn't overly expensive), and said he would enjoy fruits and vegetables for treats. Sure enough, he eagerly takes fruits and veggies. Bananas get him really excited. He will get a small crunchy dog biscuit now and then.
When he gets jerky (and he loves it), it is jerky made for human consumption, and only a very small amount. Sometimes we'll keep him busy by tearing a jerky piece into tiny bits and scattering it around the room.
I used to let my dog have human turkey jerky, too. He loved it. In fact, he always preferred human food to dog food. He was very smart.
My Jack Russell loves baby carrots if she hears me open the fridge she is right at my feet. She also loves green peppers.